Spool mounting adapter for sewing machine



FIG. 1 is a right side view of a spool mounting adapter for sewing machine in accordance with my design;

FIG. 2 is a left side view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view, thereof;

FIG. 5 is a rear view, thereof; and,

FIG. 6 is a front view, thereof. 

The ornamental design for a spool mounting adapter for sewing machine, as shown and described. 